JPH0760282B2 - Image forming device - Google Patents
Image forming deviceInfo
- Publication number
- JPH0760282B2 JPH0760282B2 JP61313889A JP31388986A JPH0760282B2 JP H0760282 B2 JPH0760282 B2 JP H0760282B2 JP 61313889 A JP61313889 A JP 61313889A JP 31388986 A JP31388986 A JP 31388986A JP H0760282 B2 JPH0760282 B2 JP H0760282B2
- Authority
- JP
- Japan
- Prior art keywords
- image forming
- main body
- corona wire
- corona
- attached
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
- G03G21/1661—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements means for handling parts of the apparatus in the apparatus
- G03G21/169—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements means for handling parts of the apparatus in the apparatus for the cleaning unit
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/02—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices
- G03G15/0258—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices provided with means for the maintenance of the charging apparatus, e.g. cleaning devices, ozone removing devices G03G15/0225, G03G15/0291 takes precedence
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/02—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices
- G03G15/0291—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices corona discharge devices, e.g. wires, pointed electrodes, means for cleaning the corona discharge device
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
- G03G21/1661—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements means for handling parts of the apparatus in the apparatus
- G03G21/1671—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements means for handling parts of the apparatus in the apparatus for the photosensitive element
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
- G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
- G03G2221/1606—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for the photosensitive element
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
- G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
- G03G2221/1678—Frame structures
- G03G2221/1684—Frame structures using extractable subframes, e.g. on rails or hinges
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
- G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
- G03G2221/1693—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for charging
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は，電子写真複写機，レーザービームプリンタ等
の画像形成装置に関する。TECHNICAL FIELD The present invention relates to an image forming apparatus such as an electrophotographic copying machine and a laser beam printer.
（従来の技術） 例えば，電子写真複写機の感光体を一様に帯電するため
に用いられるコロナ帯電器は，通常，タングステンを用
いたコロナワイヤが，箱状のシールド部材内に張設され
ている。該シールド部材は，コロナ放電用の開口が，コ
ロナワイヤに沿って開設されており，該開口が感光体に
対向するように配設され，コロナワイヤに高圧をかけて
コロナ放電を行い，感光体を一様に帯電する。このよう
に，コロナ帯電器によりコロナ放電を行うと，周囲の気
層中に含まれるシラン（SiH4）等のケイ素（Si）系ガス
が，コロナワイヤ表面に，酸化ケイ素（SiO2）等のケイ
素系化合物を生成する。このケイ素系化合物は，コロナ
ワイヤからのコロナ放電能力を著しく低下させる。その
結果，コロナ帯電器による感光体の帯電が不均一にな
り，感光体の表面電位にムラが生じ，鮮明な複写画像が
得られないおそれがある。このため，コロナワイヤに付
着するケイ素化合物を定期的に取り除かなければならな
い。(Prior Art) For example, in a corona charger used to uniformly charge a photoreceptor of an electrophotographic copying machine, a corona wire made of tungsten is usually stretched in a box-shaped shield member. There is. The shield member has an opening for corona discharge formed along the corona wire, and the opening is arranged so as to face the photoconductor. The corona wire is subjected to high pressure to perform corona discharge, To be uniformly charged. In this way, when corona discharge is performed by the corona charger, silicon (Si) -based gas such as silane (SiH 4 ) contained in the surrounding gas layer causes silicon oxide (SiO 2 ) etc. on the surface of the corona wire. Generates a silicon-based compound. This silicon compound significantly reduces the corona discharge capacity from the corona wire. As a result, the charging of the photoconductor by the corona charger becomes uneven, and the surface potential of the photoconductor becomes uneven, so that a clear copy image may not be obtained. For this reason, silicon compounds adhering to the corona wire must be regularly removed.
コロナワイヤの清掃装置として，例えば，実開昭60−68
557号公報に開示されているように，コロナ帯電器が装
置本体からの引き出し可能に配設され，清掃部材が装置
本体に取付けられたものがある。このような構成であれ
ば，コロナワイヤを清掃するために，コロナ帯電器全体
を装置本体に対して移動させなければならない。通常，
画像形成装置では，コロナ帯電器自体を装置本体から引
き出す必要がないのでコロナワイヤの清掃のために，コ
ロナ帯電器を装置本体から引き出し可能に構成しなけれ
ばならない。しかも，画像形成装置を使用する者にとっ
ては，コロナワイヤの清掃のためにのみコロナ帯電器を
移動しなければならず，この操作は非常に煩わしいとい
う欠点もある。また，この公報に開示の清操部材はコロ
ナワイヤを挟んで摺動されるために，張設されたコロナ
ワイヤに無理な力が加わると，コロナワイヤが切断する
おそれもある。As a corona wire cleaning device, for example, the actual Kaisho 60-68
As disclosed in Japanese Patent No. 557, there is a device in which a corona charger is disposed so as to be pulled out from the apparatus body, and a cleaning member is attached to the apparatus body. With such a configuration, in order to clean the corona wire, the entire corona charger must be moved with respect to the main body of the device. Normal,
In the image forming apparatus, since it is not necessary to pull out the corona charger itself from the apparatus body, the corona charger must be configured to be pulled out from the apparatus body for cleaning the corona wire. In addition, there is a drawback that this operation is very troublesome for a person who uses the image forming apparatus because the corona charger has to be moved only for cleaning the corona wire. Further, since the cleansing member disclosed in this publication slides by sandwiching the corona wire, the corona wire may be cut off when an unreasonable force is applied to the stretched corona wire.
（発明が解決しようとする問題点） 本発明は上記従来の問題を解決するためのものであり，
その目的は、少なくともトナー補給時又は転写紙搬送路
での紙詰まり処理時にはコロナワイヤの清掃ができ，し
かもその清掃時にコロナワイヤを切断するおそれがない
画像形成装置を提供することにある。(Problems to be Solved by the Invention) The present invention is for solving the above-mentioned conventional problems.
An object of the present invention is to provide an image forming apparatus which can clean the corona wire at least at the time of replenishing the toner or at the time of processing a paper jam in the transfer paper transport path, and does not cut the corona wire at the time of cleaning.
（問題点を解決するための手段） 本発明の画像形成装置は、放電用開口を有するシールド
部材の該開口に沿ってコロナワイヤが張設されたコロナ
帯電器が装置本体に取付けられており、かつ少なくとも
現像装置を有する作像ユニットが前記コロナワイヤに沿
って移動することにより装置本体からの引き出し可能に
配設された画像形成装置であり、該作像ユニットの引き
出し方向後端部に取付けられた本体部と、該本体部に取
り付けられ、該作像ユニットの前記コロナワイヤに沿っ
ての移動時に前記コロナ帯電器の放電用開口を通ってコ
ロナワイヤに摺接する可撓性および弾性を有する植毛部
と、を具備するブラシ状の清掃具と、前記装置本体にお
ける作像ユニットの引き出し方向とは反対側の端部に取
り付けられており、該作像ユニットを装置本体へ装着し
た際に該植毛部と接触し、その接触により該植毛部を屈
曲させてコロナワイヤから離隔させる離隔部材とを有す
ることを特徴としてなり、そのことにより上記目的が達
成される。(Means for Solving Problems) In the image forming apparatus of the present invention, a corona charger having a corona wire stretched along the opening of a shield member having a discharge opening is attached to the apparatus main body, And an image forming unit having at least a developing device arranged so as to be pulled out from the apparatus main body by moving along the corona wire, and is attached to the rear end portion of the image forming unit in the pulling direction. And a flock having flexibility and elasticity that is attached to the main body and slidably contacts the corona wire through the discharge opening of the corona charger when the imaging unit moves along the corona wire. And a brush-like cleaning tool having a section, and an end of the apparatus main body opposite to the drawing direction of the image forming unit. The present invention is characterized in that it has a separating member that comes into contact with the hair-implanted portion when mounted on the placement body and bends the hair-implanted portion by the contact to separate the hair-implanted portion from the corona wire.
また、本発明の画像形成装置は、放電用開口を有するシ
ールド部材の該開口に沿ってコロナワイヤが張設された
コロナ帯電器が装置本体に取付けりれており、かつ少な
くとも現像装置を有する作像ユニットが前記コロナワイ
ヤに沿って移動することにより装置本体からの引き出し
可能に配設された画像形成装置であり、該作像ユニット
の引き出し方向後端部に取付けられており内部にばね材
を有する箱体と、該箱体内のばね材にて付勢された状態
で該箱体内にスライド可能に収容された本体部、該作像
ユニットと前記コロナワイヤに沿っての移動時に前記コ
ロナ帯電器の放電用開口を通ってコロナワイヤに摺接す
るように、該本体部のばね材による付勢方向に取り付け
られた植毛部、を有するブラシ状の清掃具と、前記装置
本体における作像ユニットの引き出し方向とは反対側の
端部に取り付けられており、該清掃具の植毛部がコロナ
ワイヤから離れるように、該清掃具の本体部をばね材の
付勢力に抗して押圧するガイド部材と、を有してなり、
そのことにより上記目的が達成される。Further, in the image forming apparatus of the present invention, the corona charger having the corona wire stretched along the opening of the shield member having the discharge opening is attached to the apparatus main body, and at least the developing device is provided. An image forming apparatus arranged so that the image unit can be pulled out from the apparatus main body by moving along the corona wire, and is attached to the rear end portion of the image forming unit in the pulling direction, and has a spring member inside. A box body, a main body part slidably accommodated in the box body in a state of being biased by a spring member in the box body, the image forming unit and the corona charger when moving along the corona wire A brush-like cleaning tool having a flocked portion attached to the corona wire in a biasing direction by a spring material of the main body so as to come into sliding contact with the corona wire through the discharge opening, and an image formed in the apparatus main body. A guide that is attached to the end of the knit opposite to the pull-out direction, and that presses the main body of the cleaning tool against the biasing force of the spring material so that the bristle portion of the cleaning tool separates from the corona wire. And a member,
Thereby, the above object is achieved.
さらに、本発明の画像形成装置は、放電用開口を有する
シールド部材の該開口に沿ってコロナワイヤが張設され
たコロナ帯電器が装置本体に取付けられており、かつ少
なくとも現像装置を有する作像ユニットが前記コロナワ
イヤに沿って移動することにより装置本体からの引き出
し可能に配設された画像形成装置であり、本体部に、植
毛部が取り付けられたブラシ状の清掃具と、該作像ユニ
ットの引き出し方向後端部に、その引き出し方向とは直
交する面に沿っての回動可能に設けられて該清掃具の本
体部と一体となった回動部と、該回動部に作像ユニット
の引き出し方向への摺動可能に嵌合されており、その摺
動により該回動部を案内して回動させ得る形状をしてお
り、その回動によって該清掃具の植毛部を前記コロナ帯
電器の放電用開口を通ってコロナワイヤに摺接する位置
と該コロナワイヤから離れた位置へと移動させる摺動板
と、を有する回動手段と、を具備してなり、そのことに
より上記目的が達成される。Further, in the image forming apparatus of the present invention, the corona charger having the corona wire stretched along the opening of the shield member having the discharge opening is attached to the apparatus main body, and the image forming apparatus has at least the developing device. An image forming apparatus in which the unit is moved along the corona wire so that the unit can be pulled out from the apparatus main body, and a brush-like cleaning tool having a flocked portion attached to the main body, and the image forming unit. A rotary unit that is rotatably provided at a rear end of the cleaning device along a plane orthogonal to the drawing direction, and that is integrated with the main body of the cleaning tool; The unit is slidably fitted in the pulling-out direction of the unit, and has a shape capable of guiding and rotating the rotating unit by the sliding, and the flocked part of the cleaning tool is moved by the rotation. Corona charger discharge opening Through it and comprising a rotating means having a slide plate for moving into a position away from the position and the corona wire in sliding contact with the corona wire, and the, the above objects can be achieved.
（実施例） 以下に本発明を実施例について説明する。(Example) Hereinafter, the present invention will be described with reference to Examples.
本発明の画像形成装置である電子写真複写機は，第１図
に示すように，上部に光学系20を有し，下部の略中央部
に感光体ドラム11を有する。As shown in FIG. 1, an electrophotographic copying machine which is an image forming apparatus of the present invention has an optical system 20 in the upper part and a photosensitive drum 11 in the substantially central part of the lower part.
該感光体ドラム11は，矢印Ａで示す方向への回転可能に
なっており，その上方には，コロナ帯電器を用いた帯電
装置30が配設されている。該帯電装置30は，放電用開口
31aを有するシールド部材31内に，該開口31aに沿ってコ
ロナワイヤ32を張設したものである。該帯電装置30はコ
ロナワイヤ32が感光体ドラム11の軸心と平行になるよう
に機体に取付けられている。The photosensitive drum 11 is rotatable in the direction indicated by arrow A, and a charging device 30 using a corona charger is arranged above the photosensitive drum 11. The charging device 30 has a discharge opening.
A corona wire 32 is stretched inside the shield member 31 having 31a along the opening 31a. The charging device 30 is attached to the machine body so that the corona wire 32 is parallel to the axis of the photosensitive drum 11.
該帯電装置30の感光体ドラム回転方向下流側は，機体上
部に配設された光学系20による感光体ドラム11の露光位
置となっている。該露光位置の感光体ドラム回転方向下
流側には現像装置13が配設されている。The downstream side of the charging device 30 in the rotation direction of the photoconductor drum is the exposure position of the photoconductor drum 11 by the optical system 20 arranged on the upper part of the machine body. A developing device 13 is disposed downstream of the exposure position in the rotation direction of the photosensitive drum.
感光体ドラム11の下方には，コロナ帯電器を用いた転写
装置41および分離装置42が並設されている。分離装置42
の感光体ドラム回転方向下流側には，クリーニング装置
14が配設されており，さらにその下流側に除電装置43が
配設されている。Below the photosensitive drum 11, a transfer device 41 and a separation device 42 using a corona charger are arranged in parallel. Separator 42
Cleaning device on the downstream side of the photosensitive drum rotation direction
14 is disposed, and a static eliminator 43 is disposed further downstream thereof.
感光体ドラム11と，その周囲の現像装置13およびクリー
ニング装置14は，第２図に示すように，一体となってお
り，作像ユニット10として，機体に対して感光体ドラム
11の軸方向，従って帯電装置30のコロナワイヤ32配設方
向への引き出しが可能となっている。該作像ユニット10
は，現像装置13内のトナーが消耗されて新たにトナーを
補給する場合，あるいは転写紙搬送路に紙詰りが生じた
場合等に，機体から引き出される。The photosensitive drum 11, the developing device 13 and the cleaning device 14 around the photosensitive drum 11 are integrated as shown in FIG.
It is possible to pull out in the axial direction of 11, and thus the charging device 30 in the direction in which the corona wire 32 is arranged. The image forming unit 10
Is pulled out from the machine when the toner in the developing device 13 is exhausted and new toner is replenished, or when a paper jam occurs in the transfer paper transport path.
該作像ユニット10の引き出し方向後端部側部分（すなわ
ち，機体の内奥側部分）には，清掃具50が取付けられて
いる。該清掃具50は，第３図および第４図に示すよう
に，例えば，本体部50aとその上面に弾性性を有する毛
が植設された植毛部50bとを有するブラシ状になってい
る。そして，該清掃具50は，第３図二点鎖線で示すよう
に，作像ユニット10を機体から引き出す際に，植毛部50
bが帯電装置30のコロナ放電用開口31aを通ってコロナワ
イヤ32に接触し得るように，作像ユニット10の背面（ド
ラム側板）10aに取付けられている。清掃具50は，作像
ユニット10が機体に装着された場合には，第３図実線で
示すように，その植毛部50bが帯電装置30のコロナワイ
ヤ32から離隔し，帯電装置30の内奥側に配設されたワイ
ヤ支持部材33に接触して屈曲される。つまり、このワイ
ヤ支持部材33は植毛部50bを屈曲させてコロナワイヤ32
から離隔させる離隔部材として機能する。従ってコロナ
ワイヤ32に電圧を印加して感光体ドラム11を帯電する場
合も，清掃具50を通ってコロナワイヤ32の電荷はリーク
するおそれがない。A cleaning tool 50 is attached to the rear end side portion of the image forming unit 10 in the pull-out direction (that is, the inner rear side portion of the machine body). As shown in FIGS. 3 and 4, the cleaning tool 50 is, for example, in the form of a brush having a main body 50a and a bristle portion 50b having elastic bristles planted on its upper surface. Then, the cleaning tool 50, as shown by the chain double-dashed line in FIG.
It is attached to the back surface (drum side plate) 10a of the image forming unit 10 so that b can come into contact with the corona wire 32 through the corona discharge opening 31a of the charging device 30. When the image forming unit 10 is mounted on the machine body, the cleaning tool 50 has its flocked portion 50b separated from the corona wire 32 of the charging device 30 as shown by the solid line in FIG. The wire supporting member 33 disposed on the side is contacted and bent. In other words, the wire support member 33 bends the flocked portion 50b to make the corona wire 32
It functions as a separating member that separates from. Therefore, even when a voltage is applied to the corona wire 32 to charge the photoconductor drum 11, the electric charge of the corona wire 32 does not leak through the cleaning tool 50.
このような構成の電子写真複写機は，作像ユニット10が
機体に装着された状態で，通常の電子写真プロセスによ
り，複写画像が形成される。すなわち，コロナ帯電器を
用いた帯電装置30のコロナワイヤ32に高圧を印加して，
感光体ドラム11を一様に帯電し，帯電された該感光体ド
ラム11に，光学系20により原稿画像を露光して静電潜像
を形成する。該静電潜像は現像装置13にてトナー現像さ
れ，そのトナー像は転写装置41により転写紙搬送路を搬
送される転写紙に転写される。トナー像が転写された転
写紙は分離装置42により感光体ドラム11から分離され，
定着装置44（第１図参照）にてトナー像が転写紙に定着
された後に機外へ排出される。トナー像が転写された後
の感光体ドラム11は，クリーニング装置14にてその周面
に残留するトナーが除去される。In the electrophotographic copying machine having such a configuration, a copy image is formed by a normal electrophotographic process with the image forming unit 10 mounted on the machine body. That is, by applying a high voltage to the corona wire 32 of the charging device 30 using a corona charger,
The photoconductor drum 11 is uniformly charged, and an image of an original is exposed on the charged photoconductor drum 11 by the optical system 20 to form an electrostatic latent image. The electrostatic latent image is toner-developed by the developing device 13, and the toner image is transferred by the transfer device 41 to the transfer paper conveyed through the transfer paper conveyance path. The transfer paper on which the toner image is transferred is separated from the photoconductor drum 11 by the separation device 42,
The toner image is fixed on the transfer sheet by the fixing device 44 (see FIG. 1) and then discharged to the outside of the apparatus. After the toner image is transferred, the cleaning device 14 removes the toner remaining on the peripheral surface of the photosensitive drum 11.
このようにして，転写紙上にはトナーの複写画像が形成
される。そして，複写画像が形成される都度，現像装置
13内のトナーは消耗され，複写画像が形成された転写紙
の枚数が3000〜5000枚になると，現像装置13内のトナー
は消耗し尽くされ，現像装置13内へのトナー補給が必要
になる。In this way, a toner copy image is formed on the transfer paper. Then, every time a copy image is formed, the developing device
When the toner in the developing device 13 is exhausted and the number of transfer sheets on which a copy image is formed reaches 3000 to 5000, the toner in the developing device 13 is exhausted and it becomes necessary to replenish the toner in the developing device 13. .
現像装置13内へトナーを補給するに際して，作像ユニッ
ト10が，感光体ドラム11の軸方向へ引き出されると，そ
の引き出し方向後端部に取付けられた清掃具50は，その
上部の植毛部50bが帯電装置30のコロナワイヤ32に接触
して，感光体ドラム11の軸心に平行する該コロナワイヤ
32に沿って摺動する。そして，この摺動により清掃具50
はコロナワイヤ32に付着するケイ素系化合物等を除去す
る。When the image forming unit 10 is pulled out in the axial direction of the photoconductor drum 11 when replenishing the toner in the developing device 13, the cleaning tool 50 attached to the rear end portion in the pulling-out direction has the flocked portion 50b above it. Is in contact with the corona wire 32 of the charging device 30 and is parallel to the axis of the photoconductor drum 11.
Slide along 32. And, this sliding causes cleaning tool 50
Removes a silicon compound or the like attached to the corona wire 32.
現像装置13内へトナーが補給されて，作像ユニット10を
機体内へ装着する場合にも，同様に清掃具50aはコロナ
ワイヤ32に摺動して該コロナワイヤ32を清掃する。そし
て，作像ユニット10が機体に装着されると，清掃具50の
植毛部50bは，コロナワイヤ32から離隔し，内奥側のワ
イヤ支持部33にて屈曲された状態となる。従って，コロ
ナワイヤ32の電流が清掃具50を通ってリークするおそれ
がない。When toner is replenished into the developing device 13 and the image forming unit 10 is mounted inside the apparatus, the cleaning tool 50a slides on the corona wire 32 to clean the corona wire 32 in the same manner. Then, when the image forming unit 10 is mounted on the machine body, the flocked portion 50b of the cleaning tool 50 is separated from the corona wire 32 and is bent by the wire support portion 33 on the inner back side. Therefore, there is no possibility that the electric current of the corona wire 32 will leak through the cleaning tool 50.
このように，現像装置13内へトナーを補給する場合のほ
かに，転写紙搬送路に紙詰りが生じた場合のように，作
像ユニット10を機体から引き出せば，その引き出しを行
う毎に，コロナワイヤ32が清掃具50にて清掃される。As described above, in addition to the case of replenishing the toner in the developing device 13, when the image forming unit 10 is pulled out from the machine body, such as when a paper jam occurs in the transfer sheet conveyance path, each time the image forming unit 10 is pulled out, The corona wire 32 is cleaned by the cleaning tool 50.
第５図に，本発明の他の実施例を示す。該実施例では，
清掃具50は，箱体51内にて上下方向への移動可能に配設
されている。該清掃具50は，箱体51内に配設された押ば
ね52にて上方へ付勢されており，箱体51の上面に形成さ
れた開口部より上方へ突出している。清掃具50の本体部
50aには，該清掃具50が箱体51から抜けることを防止す
るための突部50cが設けられており，該突部50cが箱体51
の開口部の周縁部に係止して，該清掃具50が抜け止めさ
れる。FIG. 5 shows another embodiment of the present invention. In the example,
The cleaning tool 50 is arranged in the box 51 so as to be movable in the vertical direction. The cleaning tool 50 is urged upward by a pressing spring 52 provided in the box 51, and projects upward from an opening formed in the upper surface of the box 51. Body part of the cleaning tool 50
The 50a is provided with a protrusion 50c for preventing the cleaning tool 50 from coming off from the box 51.
The cleaning tool 50 is prevented from coming off by engaging with the peripheral edge of the opening of the.
帯電装置30における内奥側のワイヤ支持部33には，底面
に，第６図に示すように，一対のガイド板70および70が
取り付けられている。As shown in FIG. 6, a pair of guide plates 70 and 70 are attached to the bottom surface of the wire support portion 33 on the inner back side of the charging device 30.
各ガイド板70は，幅方向に適当な間隔をあけて配設され
ており，内奥側が下方に位置するように傾斜している。
各ガイド板70の内奥側部分は略水平になっている。清掃
具50における本体部50aの上面は，弧状になっており，
該上面の側部が各ガイド板70に摺接するようになってい
る。そして，清掃具50が各ガイド板70に摺接すると，清
掃具50の植毛部50bは両ガイド板70間に位置し，作像ユ
ニット10が機体内に装着されると植毛部50bの先端はワ
イヤ支持部33の底面には当接しない。The guide plates 70 are arranged at appropriate intervals in the width direction, and are inclined so that the inner back side is located downward.
The inner back side portion of each guide plate 70 is substantially horizontal. The upper surface of the main body 50a of the cleaning tool 50 has an arc shape,
The side portion of the upper surface is in sliding contact with each guide plate 70. Then, when the cleaning tool 50 slides on each guide plate 70, the flocked part 50b of the cleaning tool 50 is located between both guide plates 70, and when the image forming unit 10 is mounted in the machine body, the tip of the flocked part 50b moves. It does not contact the bottom surface of the wire support portion 33.
このような構成とすることにより，作像ユニット10を機
体から引き出すと，清掃具50は，各ガイド板70から外
れ，押ばね52に押圧されて上方へ移動する。この移動に
より，その植毛部50bはコロナワイヤ32に接触し，作像
ユニット10の引き出しに伴ってワイヤ32に摺接し，該コ
ロナワイヤ32を清掃する。With such a configuration, when the image forming unit 10 is pulled out from the machine body, the cleaning tool 50 is disengaged from each guide plate 70 and is pressed by the pressing spring 52 to move upward. By this movement, the flocked portion 50b comes into contact with the corona wire 32, and comes into sliding contact with the wire 32 as the image forming unit 10 is pulled out, and the corona wire 32 is cleaned.
作像ユニット10を機体に装着する場合も同様に，清掃具
50の植毛部50bがコロナワイヤ32に摺接してコロナワイ
ヤ32を清掃する。該清掃具50が，帯電装置30の内奥部に
達すると，該清掃具50がガイド板70に当接する。そし
て，該清掃具50がさらに内奥方向へ押し込まれるにつ
れ，その本体部50aはガイド板70および70に押圧されて
下方へ移動して箱体51内に押し込まれる。作像ユニット
10が機体に装着されると，清掃具50の植毛部50bは，両
ガイド板70および70間に位置し，その先端は帯電装置30
に当接しない状態になる。このため，該清掃具50の植毛
部50bは，作像ユニット10が機体に装着された状態で
も，強制的に屈曲されず，その寿命は著しく向上する。Similarly, when the image forming unit 10 is mounted on the machine body, a cleaning tool is also used.
The flocked portion 50b of 50 slides on the corona wire 32 to clean the corona wire 32. When the cleaning tool 50 reaches the inner depth of the charging device 30, the cleaning tool 50 contacts the guide plate 70. Then, as the cleaning tool 50 is pushed further inward, the main body 50a is pushed by the guide plates 70 and 70 and moves downward to be pushed into the box 51. Image forming unit
When 10 is attached to the machine body, the flocked part 50b of the cleaning tool 50 is located between the guide plates 70 and 70, and the tip thereof is the charging device 30.
Is not in contact with. Therefore, the flocked portion 50b of the cleaning tool 50 is not forcibly bent even when the image forming unit 10 is mounted on the machine body, and the life thereof is significantly improved.
第７図〜第12図にさらに他の実施例を示す。作像ユニッ
ト10の引き出し方向の後端側のドラム側板10aに，清掃
具50が回動手段６により回動可能に取りつけられてい
る。7 to 12 show still another embodiment. The cleaning tool 50 is rotatably attached to the drum side plate 10a on the rear end side in the drawing direction of the image forming unit 10 by the rotating means 6.
該回動手段６は，第８図および第９図に示すように，清
掃具50の本体部50aを一体的に回動させる回動部60aと，
ドラム側板10aの穴100aおよび該回動部60aの穴600aに
（作像ユニット10の引き出し方向に）摺動可能に貫通す
る摺動板61と，該摺動板61の摺動時に該摺動板61の回動
を防止し該摺動板61の摺動をガイドするガイド板62とを
有する。上記回動部60aはドラム側板10aの上記穴100aの
端縁に回動可能に固定されている。回動部穴600aの端縁
に一体的に設けられた係止部60bは，摺動板61が摺動状
態にあるとき，回動部60aがドラム側板10aから離隔する
ことなくドラム側板穴100aのまわりに回動しうるようド
ラム側板10aの穴100aの端縁に係止されている。ガイド
板62の一端62aは摺動板61の先端にねじ66にて固定さ
れ，他端62bはドラム側板10aの穴620を通して自由端を
形成している。摺動板61には，ドラム側板10aの背部に
おいて，スプリング63が挿通され，その付勢力により摺
動板61の先端のガイド板端部62aを回動部60aに常時当接
させている。摺動板61は摺動方向に直交する方向に捻じ
られた形に成形されている。そのため，摺動板61が上記
ドラム側板穴100aおよび回動部穴600a内を摺動すると，
回動部60aはその中心のまわりに回動する。作像ユニッ
ト10が機体内の所定位置から引き出される間もしくは所
定位置へ装着される間に，第10図に示すように，摺動板
61は，スプリング63の付勢力により，ドラム側板10aの
背後に最大限の長さをもって延出する。このとき，回動
部60aは，清掃具50の植毛部50bをコロナワイヤ32に当接
させた状態（第10図および第11図）で静止している。そ
の結果，植毛部50bがコロナワイヤ32を清掃する。作像
ユニット10が機体内の所定位置に装着されると，第７図
および第８図に示すように，摺動板61の後端がドラム側
板10aの背後の側板16に押しつけられる。そのため，摺
動板61がスプリング63の付勢力に抗してドラム側板穴10
0aおよび回動部穴600a内を摺動しドラム側板10aの前面
へ突出してくる。その結果，第12図に示すように，回動
部60aがその中心のまわりに回動し，植毛部50bはコロナ
ワイヤ32から解放される。また，前記３つの実施例にお
いて，作像ユニット10の引き出し時に，清掃具50がドラ
ムの軸心方向にスペースをとらないで，ドラムの着脱が
容易となる。As shown in FIGS. 8 and 9, the rotating means 6 includes a rotating portion 60a for integrally rotating the main body portion 50a of the cleaning tool 50,
A sliding plate 61 that slidably penetrates through the hole 100a of the drum side plate 10a and the hole 600a of the rotating portion 60a (in the drawing direction of the image forming unit 10), and the sliding plate 61 when the sliding plate 61 slides. And a guide plate 62 for preventing the rotation of the plate 61 and guiding the sliding of the sliding plate 61. The rotating portion 60a is rotatably fixed to the edge of the hole 100a of the drum side plate 10a. When the sliding plate 61 is in a sliding state, the locking portion 60b integrally provided on the end edge of the rotating portion hole 600a does not separate the rotating portion 60a from the drum side plate 10a and the drum side plate hole 100a. It is locked to the edge of the hole 100a of the drum side plate 10a so as to be able to rotate around. One end 62a of the guide plate 62 is fixed to the tip of the sliding plate 61 with a screw 66, and the other end 62b forms a free end through the hole 620 of the drum side plate 10a. A spring 63 is inserted into the sliding plate 61 at the back of the drum side plate 10a, and the guide plate end portion 62a at the tip of the sliding plate 61 is always brought into contact with the rotating portion 60a by its urging force. The sliding plate 61 is formed in a shape twisted in a direction orthogonal to the sliding direction. Therefore, when the sliding plate 61 slides in the drum side plate hole 100a and the rotating portion hole 600a,
The rotating part 60a rotates around its center. While the image forming unit 10 is being pulled out from the predetermined position in the machine body or mounted in the predetermined position, as shown in FIG.
The biasing force of the spring 63 causes the 61 to extend behind the drum side plate 10a with a maximum length. At this time, the rotating portion 60a is stationary in a state where the flocked portion 50b of the cleaning tool 50 is in contact with the corona wire 32 (Figs. 10 and 11). As a result, the flocked part 50b cleans the corona wire 32. When the image forming unit 10 is mounted at a predetermined position inside the body, the rear end of the sliding plate 61 is pressed against the side plate 16 behind the drum side plate 10a, as shown in FIGS. Therefore, the sliding plate 61 resists the biasing force of the spring 63 and the drum side plate hole 10
It slides in the hole 0a and the turning hole 600a and projects toward the front surface of the drum side plate 10a. As a result, as shown in FIG. 12, the rotating portion 60a is rotated around its center, and the bristle portion 50b is released from the corona wire 32. Further, in the above-mentioned three embodiments, the cleaning tool 50 does not take a space in the axial direction of the drum when the image forming unit 10 is pulled out, so that the drum can be easily attached and detached.
（発明の効果） 本発明の画像形成装置は，このように，機体に対して少
なくとも現像装置が着脱可能になっており，その引き出
し時にコロナ帯電器のコロナワイヤを清掃する清掃具を
有しているため，トナー補給時には，必ずコロナワイヤ
が清掃される。従って，コロナワイヤの清掃のための特
別な操作が不要となる。(Effect of the Invention) As described above, the image forming apparatus of the present invention has at least the developing device that can be attached to and detached from the machine body, and has a cleaning tool for cleaning the corona wire of the corona charger when the device is pulled out. Therefore, the corona wire is always cleaned when toner is replenished. Therefore, no special operation is required to clean the corona wire.
本発明では清掃具がブラシ状であるため，コロナワイヤ
に無理な力が加わるおそれがなく，従って，該コロナワ
イヤを切断するおそれがない。In the present invention, since the cleaning tool is in the shape of a brush, there is no risk of applying an unreasonable force to the corona wire, and therefore there is no risk of cutting the corona wire.
さらに，ブラシ状の清掃具は上下方向に移動が可能もし
くは作像ユニットの引き出し方向に直交する方向への回
動が可能である場合には，作像ユニットを装置本体に装
着したとき，清掃具が下方へ移動しその植毛部が帯電器
等に当接しない。それゆえ，ブラシ状の清掃具の寿命は
著しく向上する。コロナワイヤの電流が植毛部を通して
リークするおそれもない。Further, when the brush-like cleaning tool can be moved in the vertical direction or can be rotated in a direction orthogonal to the drawing direction of the image forming unit, the cleaning tool is mounted when the image forming unit is mounted on the apparatus main body. Moves downward and the flocked part does not contact the charger or the like. Therefore, the life of the brush-like cleaning tool is significantly improved. There is also no risk of the corona wire current leaking through the flocked part.
第１図は本発明の画像形成装置である電子写真複写機の
断面図，第２図はその要部の斜視図，第３図はその模式
的横断面図，第４図は作像ユニットの背面部の立面部，
第５図は本発明の他の実施例における要部の断面図，第
６図は第５図のVI−VI線における断面図，第７図は本発
明のさらに他の実施例における横断面図，第８図および
第10図はその要部の動作説明図，第９図はその組み立て
図，第11図は第10図の横断面図，そして第12図は第８図
の横断面図である。 ６……回動手段,10……作像ユニット,10a……ドラム側
板,10b……側板,11……感光体ドラム,13……現像装置,3
0……帯電装置,31……シールド部材,31a……コロナ放電
用開口,32……コロナワイヤ,33……ワイヤ支持部,50…
…清掃具,50a……本体部,50b……植毛部,60a……回動
部,61……摺動板,62……ガイド板,63……スプリング。FIG. 1 is a sectional view of an electrophotographic copying machine which is an image forming apparatus of the present invention, FIG. 2 is a perspective view of a main portion thereof, FIG. 3 is a schematic transverse sectional view thereof, and FIG. 4 is an image forming unit. Elevation of the back,
FIG. 5 is a sectional view of a main part in another embodiment of the present invention, FIG. 6 is a sectional view taken along line VI-VI of FIG. 5, and FIG. 7 is a lateral sectional view in yet another embodiment of the present invention. , FIG. 8 and FIG. 10 are explanatory views of the operation of the main part thereof, FIG. 9 is its assembly diagram, FIG. 11 is a transverse sectional view of FIG. 10, and FIG. 12 is a transverse sectional view of FIG. is there. 6 ... Rotating means, 10 ... Image forming unit, 10a ... Drum side plate, 10b ... Side plate, 11 ... Photosensitive drum, 13 ... Developing device, 3
0 …… Charging device, 31 …… Shield member, 31a …… Corona discharge opening, 32 …… Corona wire, 33 …… Wire support, 50…
… Cleaning tool, 50a …… Main body, 50b …… Flocking part, 60a… Rotating part, 61 …… Sliding plate, 62 …… Guide plate, 63 …… Spring.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 脇海道 高宏 大阪府大阪市東区玉造１丁目２番28号 三 田工業株式会社内 (72)発明者 波多野 太 大阪府大阪市東区玉造１丁目２番28号 三 田工業株式会社内 (72)発明者 平田 信行 大阪府大阪市東区玉造１丁目２番28号 三 田工業株式会社内 (72)発明者 上平 和也 大阪府大阪市東区玉造１丁目２番28号 三 田工業株式会社内 (56)参考文献 実開 昭60−68577（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Takahiro Wakikaido 1-2-2 Tamatsukuri, Higashi-ku, Osaka City, Osaka Prefecture Mita Kogyo Co., Ltd. (72) Futa Hatano 1-2-2 Tamatsukuri, Higashi-ku, Osaka City, Osaka Prefecture No. Mita Industry Co., Ltd. (72) Nobuyuki Hirata, Inventor Nobuyuki Hirata 1-2-2 Tamatsukuri, Higashi-ku, Osaka-shi, Osaka Prefecture Mita Kogyo Co., Ltd. (72) Kazuya Uehira 1-2-chome Takuma, Osaka-shi, Osaka No. 28 within Mita Kogyo Co., Ltd. (56) Bibliographic references Sho 60-68577 (JP, U)
Claims (3)
に沿ってコロナワイヤが張設されたコロナ帯電器が装置
本体に取付けられており、かつ少なくとも現像装置を有
する作像ユニットが前記コロナワイヤに沿って移動する
ことにより装置本体からの引き出し可能に配設された画
像形成装置であり、 該作像ユニットの引き出し方向後端部に取付けられた本
体部と、該本体部に取り付けられ、該作像ユニットの前
記コロナワイヤに沿っての移動時に前記コロナ帯電器の
放電用開口を通ってコロナワイヤに摺接する可撓性およ
び弾性を有する植毛部と、を具備するブラシ状の清掃具
と、 前記装置本体における作像ユニットの引き出し方向とは
反対側の端部に取り付けられており、該作像ユニットを
装置本体へ装着した際に該植毛部と接触し、その接触に
より該植毛部を屈曲させてコロナワイヤから離隔させる
離隔部材と を有することを特徴とする画像形成装置。1. A corona charger having a corona wire stretched along the opening of a shield member having a discharge opening is attached to the apparatus main body, and an image forming unit having at least a developing device is the corona wire. An image forming apparatus that is arranged so as to be pulled out from the apparatus main body by moving along with the main body portion attached to the rear end portion of the image forming unit in the pull-out direction, and attached to the main body portion. A brush-like cleaning tool having a flexible and elastic flocked portion that slides into contact with the corona wire through the discharge opening of the corona charger when the imaging unit moves along the corona wire, It is attached to the end of the apparatus main body opposite to the drawing direction of the image forming unit, and when the image forming unit is attached to the apparatus main body, it comes into contact with the flocked portion, An image forming apparatus, comprising a separation member which is separated from the corona wire by bending the plants bristles by contact.
に沿ってコロナワイヤが張設されたコロナ帯電器が装置
本体に取付けられており、かつ少なくとも現像装置を有
する作像ユニットが前記コロナワイヤに沿って移動する
ことにより装置本体からの引き出し可能に配設された画
像形成装置であり、 該作像ユニットの引き出し方向後端部に取り付けられて
おり内部にばね材を有する箱体と、 該箱体内のばね材にて付勢された状態で該箱体内にスラ
イド可能に収容された本体部、該作像ユニットの前記コ
ロナワイヤに沿っての移動時に前記コロナ帯電器の放電
用開口を通ってコロナワイヤに摺接するように、該本体
部のばね材による付勢方向に取り付けられた植毛部、を
有するブラシ状の清掃具と、 前記装置本体における作像ユニットの引き出し方向とは
反対側の端部に取り付けられており、該清掃具の植毛部
がコロナワイヤから離れるように、該清掃具の本体部を
ばね材の付勢力に抗して押圧するガイド部材と、 を有する画像形成装置。2. A corona charger having a corona wire stretched along the opening of a shield member having an opening for discharge is attached to the apparatus main body, and an image forming unit having at least a developing device is the corona wire. An image forming apparatus which is arranged so as to be pulled out from the apparatus main body by moving along a line, and which is attached to a rear end portion of the image forming unit in a pulling direction and has a spring member inside, and The main body slidably accommodated in the box body while being biased by the spring material inside the box body, and passes through the discharge opening of the corona charger when the image forming unit moves along the corona wire. Brush-like cleaning tool having a flocked portion attached in a biasing direction by a spring material of the main body so that the main body is slidably contacted with the corona wire; A guide member that is attached to the end portion on the side opposite to the bending direction and that presses the main body of the cleaning tool against the biasing force of the spring material so that the flocked portion of the cleaning tool separates from the corona wire. An image forming apparatus having:
に沿ってコロナワイヤが張設されたコロナ帯電器が装置
本体に取付けられており、かつ少なくとも現像装置を有
する作像ユニットが前記コロナワイヤに沿って移動する
ことにより装置本体からの引き出し可能に配設された画
像形成装置であり、 本体部に、植毛部が取り付けられたブラシ状の清掃具
と、 該作像ユニットの引き出し方向後端部に、その引き出し
方向とは直交する面に沿っての回動可能に設けられて該
清掃具の本体部と一体となった回動部と、 該回動部に作像ユニットの引き出し方向への摺動可能に
嵌合されており、その摺動により該回動部を案内して回
動させ得る形状をしており、その回動によって該清掃具
の植毛部を前記コロナ帯電器の放電用開口を通ってコロ
ナワイヤに摺接する位置と該コロナワイヤから離れた位
置へと移動させる摺動板と、を有する回動手段と、 を具備する画像形成装置。3. A corona charger having a corona wire stretched along the opening of a shield member having a discharge opening is attached to the apparatus main body, and an image forming unit having at least a developing device is the corona wire. An image forming apparatus that is arranged so that it can be pulled out from the apparatus main body by moving along with a brush-like cleaning tool having a flocked portion attached to the main body, and a rear end in the pulling-out direction of the image forming unit. And a rotating unit that is rotatably provided along a plane orthogonal to the drawing direction of the cleaning unit and is integrated with the main body of the cleaning tool; Is slidably fitted, and has a shape capable of guiding and rotating the rotating portion by the sliding, and the hair-implanted portion of the cleaning tool is discharged by the rotation of the corona charger by the rotation. Corona wai through the opening Image forming apparatus comprising a rotating means, a having a sliding plate for moving into a position away from the sliding contact position and the corona wire, to.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61313889A JPH0760282B2 (en) | 1986-10-15 | 1986-12-26 | Image forming device |
| DE8787309071T DE3766691D1 (en) | 1986-10-15 | 1987-10-14 | DEVICE FOR PRODUCING IMAGES. |
| US07/108,592 US4811050A (en) | 1986-10-15 | 1987-10-14 | Apparatus for the forming of images with a cleaning device for a corona wire |
| EP87309071A EP0267689B1 (en) | 1986-10-15 | 1987-10-14 | An apparatus for the formation of images |
| KR1019870011586A KR910003928B1 (en) | 1986-10-15 | 1987-10-15 | Image-making apparatus |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24511786 | 1986-10-15 | ||
| JP61-245117 | 1986-10-15 | ||
| JP61313889A JPH0760282B2 (en) | 1986-10-15 | 1986-12-26 | Image forming device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63226673A JPS63226673A (en) | 1988-09-21 |
| JPH0760282B2 true JPH0760282B2 (en) | 1995-06-28 |
Family
ID=26537049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61313889A Expired - Lifetime JPH0760282B2 (en) | 1986-10-15 | 1986-12-26 | Image forming device |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4811050A (en) |
| EP (1) | EP0267689B1 (en) |
| JP (1) | JPH0760282B2 (en) |
| KR (1) | KR910003928B1 (en) |
| DE (1) | DE3766691D1 (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04194971A (en) * | 1990-11-27 | 1992-07-14 | Minolta Camera Co Ltd | Image forming device |
| JP2769251B2 (en) * | 1991-05-24 | 1998-06-25 | キヤノン株式会社 | Image forming device |
| KR950011874B1 (en) * | 1992-12-10 | 1995-10-11 | 현대전자산업주식회사 | Method and apparatus for automatically cleaning charging wires |
| US5485255A (en) * | 1994-08-31 | 1996-01-16 | Eastman Kodak Company | Automatic cleaning mechanism for a corona charger using cleaning pad |
| KR0134699B1 (en) * | 1994-12-27 | 1998-04-30 | 김광호 | Charger cleaner in apparatus for electro-graphic device |
| WO2002039191A1 (en) * | 2000-11-08 | 2002-05-16 | Fuji Xerox Co., Ltd. | Image forming device |
| US7493060B2 (en) * | 2005-09-16 | 2009-02-17 | Xerox Corporation | Cleaning system for removing dendrites from a charging device in a xerographic printer |
| DE102005045150A1 (en) | 2005-09-22 | 2007-04-05 | Basf Coatings Ag | Use of phosphonic diesters and diphosphonic diesters and thermally curable mixtures containing phosphonic diester and Diphosphonsäurediester |
| DE102005045228A1 (en) | 2005-09-22 | 2007-04-05 | Basf Coatings Ag | Use of phosphonic diesters and diphosphonic diesters, and silane-containing, curable mixtures containing phosphonic and Diphosphonsäurediester |
| DE102006024823A1 (en) | 2006-05-29 | 2007-12-06 | Basf Coatings Ag | Use of curable mixtures containing silane-containing compounds and phosphonic or Diphosphonsäurediester as adhesion promoters |
| JP2010516459A (en) * | 2007-01-24 | 2010-05-20 | ベンティバ・インコーポレイテッド | Method and apparatus for preventing dust agglomeration at a corona electrode |
| DE102007014720A1 (en) | 2007-03-23 | 2008-09-25 | Basf Coatings Japan Ltd., Yokohama | Phosphonate-containing two-component paint system, its preparation and use |
| JP5451093B2 (en) | 2009-01-30 | 2014-03-26 | キヤノン株式会社 | Sheet conveying apparatus and image forming apparatus |
| US8676087B2 (en) * | 2010-06-30 | 2014-03-18 | Brother Kogyo Kabushiki Kaisha | Image forming device having charging wire cleaning mechanism |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3891846A (en) * | 1972-01-18 | 1975-06-24 | Canon Kk | Corona discharger cleaning apparatus |
| US3965400A (en) * | 1975-02-24 | 1976-06-22 | Xerox Corporation | Corona generating device with improved built-in cleaning mechanism |
| JPS54146635A (en) * | 1978-05-09 | 1979-11-16 | Canon Inc | Corona discharge instrument |
| US4470689A (en) * | 1981-06-02 | 1984-09-11 | Canon Kabushiki Kaisha | Image forming apparatus and process unit |
| JPS58173757A (en) * | 1982-04-07 | 1983-10-12 | Canon Inc | Cleaning mechanism of charging device of electrostatic copying machine |
| JPS58186761A (en) * | 1982-04-26 | 1983-10-31 | Fuji Xerox Co Ltd | Corotron device |
| US4566777A (en) * | 1982-08-23 | 1986-01-28 | Canon Kabushiki Kaisha | Process kit for image forming apparatus |
| JPS59111656A (en) * | 1982-12-17 | 1984-06-27 | Fuji Xerox Co Ltd | Corotron wire cleaning device of copying machine |
| JPS6068557U (en) * | 1983-10-17 | 1985-05-15 | キヤノン株式会社 | Discharger cleaning device |
| JPS60249169A (en) * | 1984-05-24 | 1985-12-09 | Canon Inc | Cleaning device for corona discharger |
| JPS61117579A (en) * | 1984-11-14 | 1986-06-04 | Fuji Xerox Co Ltd | Cleaning device of corona discharger |
| US4734580A (en) * | 1986-06-16 | 1988-03-29 | The Simco Company, Inc. | Built-in ionizing electrode cleaning apparatus |
| JPH0668557A (en) * | 1992-08-21 | 1994-03-11 | Matsushita Electric Ind Co Ltd | Tape carrying device |
| JPH06139080A (en) * | 1992-10-27 | 1994-05-20 | Shikoku Nippon Denki Software Kk | Event circulation processing system |
-
1986
- 1986-12-26 JP JP61313889A patent/JPH0760282B2/en not_active Expired - Lifetime
-
1987
- 1987-10-14 US US07/108,592 patent/US4811050A/en not_active Expired - Lifetime
- 1987-10-14 DE DE8787309071T patent/DE3766691D1/en not_active Expired - Lifetime
- 1987-10-14 EP EP87309071A patent/EP0267689B1/en not_active Expired - Lifetime
- 1987-10-15 KR KR1019870011586A patent/KR910003928B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR910003928B1 (en) | 1991-06-17 |
| JPS63226673A (en) | 1988-09-21 |
| US4811050A (en) | 1989-03-07 |
| EP0267689A3 (en) | 1988-11-02 |
| KR880005493A (en) | 1988-06-29 |
| EP0267689B1 (en) | 1990-12-12 |
| EP0267689A2 (en) | 1988-05-18 |
| DE3766691D1 (en) | 1991-01-24 |
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